Wholesale: Operation Support Systems

Directory Listing Inquiry System (DLIS)

Accessing the Directory Listing Inquiry System (DLIS) enables CLECs to review directory listing information prior to and subsequent to submitting directory listing orders to CenturyLink for processing.

Directory Listing Inquiry System CLEC User Guide

Verification Proofs

For a complete list of all of your directory listings on demand, email VPREQ@centurylink.com with the completed form

DNLD On Demand VP Request_Form

Last Update: August 2026